It won't taste like commercial ciders, specially if you are comparing yours to American 6-pack ciders. They are far from dry. The longer you let it age, the more the acids remaining after your cider goes dry has a chance to mellow out and become more balanced. If you rush it, it will have a tart bite to it which may or may not be pleasant to you.
Actually, most apple juices that are not concentrate or made from concentrate, but actual apple juice, fall around 6-7%. If you add sugar, you are increasing the potential alcohol. If you do that, then all you can taste is alcohol, especially when young. It is rocket fuel to some people, and they don't understand why people bother with these recipes. If that happens, let it age, and it will get better.